1 files changed, 5 insertions, 3 deletions
diff --git a/pylint/extensions/emptystring.py b/pylint/extensions/emptystring.py
index 4e466aca4..15bdd1e58 100644
--- a/pylint/extensions/emptystring.py
+++ b/pylint/extensions/emptystring.py
@@ -13,13 +13,16 @@
 """Looks for  comparisons to empty string."""
 
 import itertools
-from typing import Any, Iterable
+from typing import TYPE_CHECKING, Any, Iterable
 
 from astroid import nodes
 
 from pylint import checkers, interfaces
 from pylint.checkers import utils
 
+if TYPE_CHECKING:
+    from pylint.lint import PyLinter
+
 
 class CompareToEmptyStringChecker(checkers.BaseChecker):
     """Checks for comparisons to empty string.
@@ -72,6 +75,5 @@ class CompareToEmptyStringChecker(checkers.BaseChecker):
                 self.add_message("compare-to-empty-string", node=node)
 
 
-def register(linter):
-    """Required method to auto register this checker."""
+def register(linter: "PyLinter") -> None:
     linter.register_checker(CompareToEmptyStringChecker(linter))